Diatoms possess:
A) photosynthetic pigments other than chlorophyll
B) an outer layer containing silicates
C) abrasive qualities
D) all of these
Correct Answer:
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Q12: All protists:
A)are photosynthetic
B)have a true nucleus
C)have cell
Q13: An organism that lives at the expense
Q14: A host in which a parasite reproduces
Q15: Organisms that obtain nutrients from decaying matter
Q16: Euglenoids contain a stigma,the purpose of which
Q18: Protozoa are always:
A)multicellular
B)parasitic
C)heterotrophic
D)photosynthetic
Q19: Protists may be described according to whether
Q20: Many protists have shells of calcium carbonate
Q21: One major difference between flatworms and roundworms
Q22: Which of the following statements about protists
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